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MMA vs MMI in California Workers' Comp
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By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization · Cal Bar #285231
What is the difference between MMA and MMI in California workers' comp?
MMI is a medical status. MMA is not a standard rating term. Most MMA searches mean AME or QME.
The terms sound close, and workers hear them during stressful parts of a claim. That makes confusion normal. One term asks whether your medical condition has stabilized. The other usually points to the doctor who may decide a medical dispute.
In California workers' comp, MMI means maximum medical improvement. Doctors also call it permanent and stationary. It means the injury has reached a stable point for rating, restrictions, future care, and settlement planning.
MMA is different because it is not a standard California workers' comp rating term. If someone uses MMA in conversation, ask what they mean. Many workers are actually asking about AME, an agreed medical evaluator, or QME, a qualified medical evaluator. Those are doctors who write medical-legal reports when the parties dispute an issue.
What does MMI change in the claim?
MMI changes the claim from active recovery to permanent disability review, work restrictions, future care, and settlement planning.
Before MMI, the claim usually centers on treatment and temporary disability. After MMI, the doctor should describe lasting impairment and permanent work limits. The report should also say what future medical care is likely.
MMI can affect payments. Temporary disability often stops when the doctor finds permanent and stationary status. Permanent disability advances may begin after the report supports a rating. That shift can create confusion because one check type may stop while another benefit begins.
The post-MMI benefit picture is easier to understand in a table.
| Benefit | What it pays in 2026 |
|---|---|
| Temporary disability | Two-thirds of your wage, $264.61 to $1,764.11 per week, up to 104 weeks (Labor Code 4656) |
| Permanent disability | Two-thirds of your wage, $160 to $290 per week, set by your rating (Labor Code 4658) |
| Medical care | 100 percent of approved care, no copay (Labor Code 4600) |
| Medical mileage | 72.5 cents per mile to your appointments |
| Job retraining voucher | $6,000 if you cannot return to your old job (Labor Code 4658.7) |
| Death benefits | $250,000 to $320,000 to dependents, plus $10,000 burial (Labor Code 4702) |
What does AME mean if MMA was the wrong word?
An AME is an agreed medical evaluator, a doctor both sides choose to resolve a medical dispute without a panel.
AME stands for agreed medical evaluator. The worker's attorney and the insurance company's lawyer agree on one physician. That doctor reviews records, examines the worker, and writes a medical-legal report.
An AME is not the treating doctor. The AME does not become your regular provider. The job is to answer disputed medical questions. Common questions include causation, MMI, impairment, apportionment, work restrictions, and future care.
AME reports often carry strong weight because both sides agreed to use the doctor. That does not mean the report is always right. It does mean the choice should be made carefully. The doctor should fit the injury, the medical dispute, and the strategy.
What does QME mean instead?
A QME is a qualified medical evaluator selected through a state panel when the parties have a medical dispute.
QME stands for qualified medical evaluator. Labor Code 4062.2 describes the represented-worker panel process. The state issues a panel of doctors. Each side may strike a name. The remaining doctor performs the evaluation.
The QME report can decide major parts of the claim. It may address whether the injury is work-related. It may address whether the worker is at MMI. It may rate impairment. It may divide disability between work and non-work causes under Labor Code 4663.
Do not treat the QME as a casual appointment. The evaluator sees the medical record, job history, and worker's account. Incomplete records or a weak job history can lead to a weaker report.
How should you read these terms together?
MMI is the medical milestone. AME and QME describe the doctors who may decide whether that milestone is correct.
The terms belong to different categories. MMI is a status. It says where the medical condition stands. AME and QME are evaluator roles. They describe who may decide a disputed medical question.
A worker may have an MMI dispute decided by a QME. A worker may also have an MMI dispute decided by an AME if both sides agreed to that doctor. The report may then affect permanent disability, future care, and settlement structure.
If a document says something unclear, ask for the exact meaning. Is the issue MMI? Is the issue a QME panel? Is the issue an AME agreement? Clear terms prevent bad decisions.
What should you do before an AME or QME evaluates MMI?
Before the exam, organize records, job facts, symptoms, prior injuries, treatment history, and current limits so the evaluator has a complete picture.
The medical-legal exam is not a normal doctor visit. The evaluator is writing a report for the legal case. The worker should be truthful, clear, and prepared. Exaggeration hurts. So does leaving out important details.
Bring a simple timeline in your mind. Know how the injury happened. Know what treatment helped and what did not. Know what tasks still cause problems. Know whether your job involved lifting, standing, driving, pushing, patient care, tools, or repetitive motion.
Preparation does not mean coaching false answers. It means making sure the real history is complete. A good report starts with accurate facts.
What mistakes cause problems after MMI?
The biggest mistakes are treating MMI as full recovery, ignoring future care, and accepting evaluator terms without knowing what they mean.
A worker can be at MMI and still need care. The condition may be stable, but stable does not mean painless. Stable does not mean safe for the old job. Stable does not mean the case should close without future medical review.
Another mistake is letting unclear language control the decision. If a letter, adjuster, or doctor uses a term you do not understand, ask for the plain meaning. Is the issue an MMI date? Is the issue an AME agreement? Is the issue a QME panel? Each answer points to a different next step.
A third mistake is waiting until settlement to review the evaluator report. By then, the report may already be driving the offer. Early review gives the worker a chance to fix missing records, wrong job facts, or unsupported apportionment before the number hardens.
Injured at work? Call (661) 273-1780
Tap to call →How does Yazdchi Law explain AME, QME, and MMI?
The firm separates the terms, reviews the medical dispute, and prepares the worker before any evaluator opinion controls the case.
Yazdchi Law helps injured workers across Greater Los Angeles, including cases at the Van Nuys, Los Angeles, Long Beach, Pomona, San Bernardino, Riverside, and Oxnard WCAB districts. The first step is defining the problem. A worker may need an MMI report review, a QME panel strategy, or advice on whether an AME is a good choice.
Eman Yazdchi is a Certified Specialist in workers' compensation law, certified by the California Board of Legal Specialization, State Bar of California. If an evaluator report is coming up, or if a document uses confusing terms, call (661) 273-1780. A short review can show whether the issue is medical status, evaluator selection, rating, future care, or settlement timing.
The review is practical. It checks what question the evaluator must answer, what records the doctor will receive, and whether the job facts are complete. It also checks whether the worker should ask for clarification before signing anything.
The firm also checks for term confusion in notices and settlement papers. A worker should not sign because a phrase sounds official. The document should explain whether the issue is medical status, evaluator selection, open medical care, or settlement closure.
That kind of clarity helps the worker ask better questions at the next hearing or exam. It also keeps the claim focused on the real dispute instead of a misunderstood abbreviation.
Frequently Asked Questions
Is MMA a real California workers' comp rating term?
MMA is not a standard California workers' comp rating term. If someone uses that phrase, ask what they mean. Many workers mean AME, QME, MMI, or a settlement term. Each one has a different legal effect.
Is AME the same as QME?
An AME is agreed to by both sides. A QME is selected from a state panel process when there is a medical dispute. Both can write medical-legal reports, but the selection path and strategy differ.
Can a QME decide if I am at MMI?
A QME can address whether the worker has reached MMI when that issue is disputed. The report should explain the medical basis for the opinion and should address impairment, restrictions, future care, and apportionment when those issues are presented.
Can an AME decide permanent disability?
An AME can provide impairment findings and medical opinions that are used to rate permanent disability. The final rating still depends on the report, the rating schedule, valid apportionment, and any legal disputes the parties raise.
Should I agree to an AME?
Agreement to an AME should be strategic. The doctor should be appropriate for the injury and dispute. Because both sides chose the doctor, the report can carry strong weight. Review the choice before agreeing.
Does MMI mean treatment ends?
MMI does not end treatment by itself. Medical care can continue when it is reasonable and related to the work injury. The future care section of the MMI report is important before settlement.
What if the evaluator uses the wrong facts?
Wrong facts can lead to a wrong report. A supplemental report, factual correction, deposition, or hearing may be needed. The sooner the error is identified, the easier it is to address.
Do I need a lawyer before a QME or AME exam?
Legal review before an evaluator exam can help protect the record. The lawyer can review the panel or AME choice, organize records, prepare job facts, and identify the questions the report must answer.
Can MMI and a QME happen in the same case?
Yes. A QME may decide whether the worker is at MMI when the treating doctor and insurer disagree. The QME report can then affect permanent disability, work restrictions, future care, and settlement timing.
What should I ask if someone says MMA?
Ask the person to spell out the term and explain the document. In California workers' comp, the standard evaluator terms are AME and QME. The standard medical-status term is MMI.
Last reviewed by Eman Yazdchi, Esq., July 2026.
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